block heater or oil heater

Discussion in 'General Chevy & GM Tech Questions' started by bucky, Oct 30, 2013.

  1. bucky

    bucky New Member

    I have a 2001 GMC sierra Diesel 2500hd 4 door. Wld like to know if has a block heater or oil heater.
    If a block heater where would it be located.It is not working & may need to be changed. Thanks

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